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Fix race condition on startup (#2679)

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`SetupAndServeHTTP` would race in `configureHTTPErrors` and while configuring routes.
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Till 2022-08-30 13:59:13 +02:00 committed by GitHub
parent bbb3ade4a2
commit b0e2ea0f37
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1 changed files with 13 additions and 5 deletions
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18
setup/base/base.go
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@ -25,21 +25,23 @@ import (
_ "net/http/pprof" _ "net/http/pprof"
"os" "os"
"os/signal" "os/signal"
"sync"
"syscall" "syscall"
"time" "time"
"github.com/getsentry/sentry-go" "github.com/getsentry/sentry-go"
sentryhttp "github.com/getsentry/sentry-go/http" sentryhttp "github.com/getsentry/sentry-go/http"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/httputil"
"github.com/matrix-org/dendrite/internal/pushgateway"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/gomatrixserverlib" "github.com/matrix-org/gomatrixserverlib"
"github.com/prometheus/client_golang/prometheus/promhttp" "github.com/prometheus/client_golang/prometheus/promhttp"
"go.uber.org/atomic" "go.uber.org/atomic"
"golang.org/x/net/http2" "golang.org/x/net/http2"
"golang.org/x/net/http2/h2c" "golang.org/x/net/http2/h2c"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/httputil"
"github.com/matrix-org/dendrite/internal/pushgateway"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/internal" "github.com/matrix-org/dendrite/internal"
"github.com/matrix-org/dendrite/setup/jetstream" "github.com/matrix-org/dendrite/setup/jetstream"
"github.com/matrix-org/dendrite/setup/process" "github.com/matrix-org/dendrite/setup/process"
@ -47,6 +49,8 @@ import (
"github.com/gorilla/mux" "github.com/gorilla/mux"
"github.com/kardianos/minwinsvc" "github.com/kardianos/minwinsvc"
"github.com/sirupsen/logrus"
appserviceAPI "github.com/matrix-org/dendrite/appservice/api" appserviceAPI "github.com/matrix-org/dendrite/appservice/api"
asinthttp "github.com/matrix-org/dendrite/appservice/inthttp" asinthttp "github.com/matrix-org/dendrite/appservice/inthttp"
federationAPI "github.com/matrix-org/dendrite/federationapi/api" federationAPI "github.com/matrix-org/dendrite/federationapi/api"
@ -58,7 +62,6 @@ import (
"github.com/matrix-org/dendrite/setup/config" "github.com/matrix-org/dendrite/setup/config"
userapi "github.com/matrix-org/dendrite/userapi/api" userapi "github.com/matrix-org/dendrite/userapi/api"
userapiinthttp "github.com/matrix-org/dendrite/userapi/inthttp" userapiinthttp "github.com/matrix-org/dendrite/userapi/inthttp"
"github.com/sirupsen/logrus"
) )
// BaseDendrite is a base for creating new instances of dendrite. It parses // BaseDendrite is a base for creating new instances of dendrite. It parses
@ -87,6 +90,7 @@ type BaseDendrite struct {
Database *sql.DB Database *sql.DB
DatabaseWriter sqlutil.Writer DatabaseWriter sqlutil.Writer
EnableMetrics bool EnableMetrics bool
startupLock sync.Mutex
} }
const NoListener = "" const NoListener = ""
@ -394,6 +398,9 @@ func (b *BaseDendrite) SetupAndServeHTTP(
internalHTTPAddr, externalHTTPAddr config.HTTPAddress, internalHTTPAddr, externalHTTPAddr config.HTTPAddress,
certFile, keyFile *string, certFile, keyFile *string,
) { ) {
// Manually unlocked right before actually serving requests,
// as we don't return from this method (defer doesn't work).
b.startupLock.Lock()
internalAddr, _ := internalHTTPAddr.Address() internalAddr, _ := internalHTTPAddr.Address()
externalAddr, _ := externalHTTPAddr.Address() externalAddr, _ := externalHTTPAddr.Address()
@ -472,6 +479,7 @@ func (b *BaseDendrite) SetupAndServeHTTP(
externalRouter.PathPrefix(httputil.PublicMediaPathPrefix).Handler(b.PublicMediaAPIMux) externalRouter.PathPrefix(httputil.PublicMediaPathPrefix).Handler(b.PublicMediaAPIMux)
externalRouter.PathPrefix(httputil.PublicWellKnownPrefix).Handler(b.PublicWellKnownAPIMux) externalRouter.PathPrefix(httputil.PublicWellKnownPrefix).Handler(b.PublicWellKnownAPIMux)
b.startupLock.Unlock()
if internalAddr != NoListener && internalAddr != externalAddr { if internalAddr != NoListener && internalAddr != externalAddr {
go func() { go func() {
var internalShutdown atomic.Bool // RegisterOnShutdown can be called more than once var internalShutdown atomic.Bool // RegisterOnShutdown can be called more than once